28093104 has 120 divisors (see below), whose sum is σ = 86886800. Its totient is φ = 8418816.

The previous prime is 28093103. The next prime is 28093181. The reversal of 28093104 is 40139082.

It is not an unprimeable number, because it can be changed into a prime (28093103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80322 + ... + 80670.

Almost surely, 2^28093104 is an apocalyptic number.

28093104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28093104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43443400).

28093104 is an abundant number, since it is smaller than the sum of its proper divisors (58793696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28093104 is a wasteful number, since it uses less digits than its factorization.

28093104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 28093104 is about 5300.2928220995. The cubic root of 28093104 is about 303.9950945654.

The spelling of 28093104 in words is "twenty-eight million, ninety-three thousand, one hundred four".